Use the binomial formula for the first three terms of $(1+x)^n$ for negative and fractional indices $(1+x)^n = 1 + nx + \frac{n(n-1)}{2!}x^2$ To find the first three terms of the expansion of $(1+x)^{0.25}$ Enter the coefficients corrected (if necessary) to three decimal places. e.g. $2 + 3x + 3.667x^2$
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Step 1: The binomial formula for (1+x)^(n) is given by: (1+x)^(n) = 1 + nx + (n(n-1))/(2!)x^(2) Show more…
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